EP2233250A1 - Appareil pour clouer - Google Patents

Appareil pour clouer Download PDF

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Publication number
EP2233250A1
EP2233250A1 EP09170181A EP09170181A EP2233250A1 EP 2233250 A1 EP2233250 A1 EP 2233250A1 EP 09170181 A EP09170181 A EP 09170181A EP 09170181 A EP09170181 A EP 09170181A EP 2233250 A1 EP2233250 A1 EP 2233250A1
Authority
EP
European Patent Office
Prior art keywords
barrel
nail
shooting
centering sleeve
cylinder
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP09170181A
Other languages
German (de)
English (en)
Inventor
Hon Kan Cheung
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sun Grace Holdings Ltd
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP2233250A1 publication Critical patent/EP2233250A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25C—HAND-HELD NAILING OR STAPLING TOOLS; MANUALLY OPERATED PORTABLE STAPLING TOOLS
    • B25C1/00—Hand-held nailing tools; Nail feeding devices
    • B25C1/08—Hand-held nailing tools; Nail feeding devices operated by combustion pressure

Definitions

  • the present invention relates to an apparatus for shooting a nail.
  • An apparatus for shooting a nail is used widely in the construction industry.
  • the apparatus for shooting a nail pushes a piston rod forwards by means of explosive force of a gunpowder or thrust of a compressed gas such that the piston rod boosts and shoots a nail from a nail feeder along a barrel. As a result, the nail is shot into a desired location.
  • the barrel In the conventional apparatus for shooting a nail, the barrel is fixedly mounted. It is usually difficult to eliminate a malfunction if the nail is blocked in the barrel. Moreover, it is impossible to replace a different type of barrel to meet different applications. Furthermore, to shoot the nail into a proper location, it is necessary to ensure that the piston rod is properly centered during its movement. The conventional apparatus for shooting a nail can not always ensure that the piston rod is properly centered during its movement.
  • an apparatus for shooting a nail comprising:
  • an apparatus for shooting a nail comprising:
  • the barrel may be removed conveniently and quickly as desired to facilitate the replacement of the barrel for different application or removal of the nail blocked in the apparatus for shooting a nail.
  • the piston rod is concentric with the barrel when hitting the nail and the hit force of the piston rod will not lose.
  • the apparatus for shooting a nail according to the present invention will be explained in detail below with reference to the accompany figures. Only the main components of the apparatus for shooting a nail according to the present invention are shown in the figures while some known components such as a trigger mechanism are not shown.
  • the apparatus for shooting a nail generally comprises a barrel 1, a barrel support 4, a centering sleeve 6, a link frame 8, a cylinder 9, a piston rod 10 and an outer housing 11.
  • a first receiving portion 4a for receiving the barrel 1 and a second receiving portion 4b for receiving the centering sleeve 6 and communicating with the first receiving portion 4a are formed within a body of the barrel support 4.
  • the barrel 1 and the centering sleeve 6 are movably mounted in the barrel support 4.
  • a through hole 6a is formed through a body of the centering sleeve 6.
  • the link frame 8 includes a fitting disc 8a and four links 8b extending from the fitting disc 8a.
  • the generally cylindrical cylinder 9 has respective openings 9a, 9b at its two ends and is formed with four elongated slots 9c in the cylindrical wall at one end.
  • a stop 9d with a central opening 9e is disposed adjacent to a distal end of the elongated slots 9c.
  • the piston rod 10 includes an elongated rod body 10a and a piston disc 10b.
  • a generally cylindrical cavity 11a is formed within the outer housing 11.
  • the barrel 1 is mounted snugly and movably in the first receiving portion 4a of the barrel support 4 and the centering sleeve 6 is mounted snugly and movably in the second receiving portion 4b of the barrel support 4.
  • One end of the barrel support 4 in which the centering sleeve 6 is received is connected fixedly with one end of the cylinder 9 at which the slots 9c are formed.
  • the link frame 8 connects with the centering sleeve 6 via the fitting disc 8a.
  • the links 8b of the link frame 8 pass through the respective slots 9c on the cylinder 9 and are connected with the outer housing 11 at their free end.
  • the piston rod 10 is mounted snugly and movably in the cylinder 9 such that the rod body 10a passes through the central opening 9e on the stop 9d of the cylinder 9 and the through hole 6a of the centering sleeve 6, and aligns with the nail passage 1a within the barrel 1.
  • the end of the cylinder 9 opposite to the barrel support 4 is received within the out house 11 such that the outer housing 11 together with the link frame 8 and the centering sleeve 6 are movable relative to the cylinder 9.
  • Two longitudinally elongated grooves 1b are formed diametically and oppositely in the outer wall of the barrel 1.
  • Through holes 4c are formed in the wall of the first receiving portion 4a of the barrel support 4 at the locations which correspond to the grooves 1b.
  • the through holes 4c are used to receive a steel ball 3 respectively.
  • the diameter of the opening of each through hole 4c adjacent to the first receiving portion 4a is smaller than that of the steel ball 3 such that the steel ball 3 is exposed partially to the first receiving portion 4a but does not fall into the first receiving portion 4a.
  • the steel balls 3 are held within the through holes 4c by a snap ring 2 on its outside such that they do not drop out of the through holes 4c.
  • the snap ring 2 always presses a portion of the steel ball 3 into the first receiving portion 4a.
  • the number of the grooves 1b in the barrel 1 and the through holes 4c in the barrel support 4 may be more than two. In the case that the number is more than two, it is preferable that the grooves 1b and the through holes 4c are distributed uniformly in the barrel 1 and the barrel support 4 respectively.
  • the barrel 1 is inserted into the first receiving portion 4a of the barrel support 4 and the steel balls 3 are pressed partially into the grooves 1b in the barrel 1 under action of the snap ring 2.
  • the barrel 1 is held within the barrel support 4 by a combination of the snap ring 2 and the steel balls 3. Without external force, the barrel 1 can only move back and forth within the barrel support 4.
  • an arcuated surface 1d is formed at an end of the grooves 1b from which the steel ball 3 enters and exits.
  • Two longitudinally elongated slots 6b are formed diametically and oppositely in the centering sleeve 6, and the slots 6b penetrate through the wall of the centering sleeve 6.
  • the steel balls 7 are received in the respective slots 6b and are held in the slots 6b via a snap ring 5.
  • the combination of the centering sleeve 6, the snap ring 5 and the steel balls 7 is used to embrace the piston rod, as shown in figure 8 .
  • the inner wall of the snap ring 5 forms a taper hole such that the inner diameter of the snap ring 5 reduces gradually in a direction towards the barrel 1, as shown in figure 8 .
  • the number of the slots 6b in the centering sleeve 6 may be more than two. In the case that the number is more than two, it is preferable that the slots 6b are distributed uniformly in the centering sleeve 6.
  • the apparatus for shooting a nail further comprises a nail feeder 12 which feeds the nail 13 into the barrel 1 through the openings in the barrel support 4 and in the barrel 1 to be shot, as shown in figure 3 .
  • the nail feeder 12 has a protrusion 12a at its upper end.
  • the barrel support 4 and the barrel 1 are formed with a corresponding notch 4d and a corresponding notch 1c respectively.
  • the protrusion 12a of the nail feeder 12 enters into the notch 1c in the barrel 1 through the notch 4d of the barrel support 4, as shown in figure 2 .
  • the nail feeder 12 locks the barrel 1 such that the barrel 1 and the barrel support 4 can not move relative to each other.
  • the apparatus for shooting a nail can not work.
  • the apparatus for shooting a nail can work only after the protrusion 12a of the nail feeder 12 is pulled out of the notch 1c in the barrel 1.
  • a closed chamber is formed by the outer housing 11, the cylinder 9 and the piston disc 10b, as shown in figure 4 .
  • the combustible gas is introduced into the closed chamber, fired and burned to explode, or a compressed gas is introduced directly into the closed chamber.
  • the piston rod is driven by the high temperature gas or the high pressure gas to hit the nail so as to shoot the nail.
  • the barrel 1 When it is necessary for the apparatus for shooting a nail according to the present invention to replace the barrels 1-2, 1-3 and 1-4 for other applications as shown in figure 5 , the barrel 1 is forcefully pull out. Against the pressure effect of the snap ring 2 on the steel balls 3, it is possible to pull the barrel 1 out of the barrel support 4. Then, a barrel for other application may be inserted directly into the barrel support 4 to complete conveniently and quickly the replacement of the barrel.
  • the barrel 1 When it is necessary to remove the block of the nail in the barrel support, the barrel 1 is pulled out of the barrel support 4 in the same way. After the barrel 1 is pulled out, the barrel support 4 is run-through from the bottom up and it is possible to remove easily the blocked nail from the bottom up, as shown in the figure 5 . After the barrel is reassemblied, the apparatus for shooting a nail may be used again.
  • the cross section of a portion of the barrel 1 to be inserted into the barrel support 4 may be rectangle, and the cross section of the first receiving portion 4a of the barrel support 4 is also rectangle correspondingly, thereby preventing the barrel 1 from rotating relative to the barrel support 4. It should be understood that the cross section of the portion of the barrel 1 to be inserted into the barrel support 4 and the cross section of the first receiving portion 4a of the barrel support 4 may be, for example, triangle, trapezoid or any other polygon, or ellipse.
  • the centering sleeve 6 may limit the rod body 10a of the piston rod to ensure that the piston rod is concentric with the barrel when hitting the nail.
  • the combination of the snap ring 5 and the steel balls 7 on the centering sleeve 6 and forming the inner wall of the snap ring 5 as a taper hole when the piston rod moves towards the barrel to hit the nail, the steel balls 7 move together with the piston rod towards the end of the inner wall of the snap ring having a smaller diameter.
  • the pressing force applied by the snap ring forms a resistance against the forward movement of the piston rod such that the piston rod can not move freely towards the barrel so as to ensure that the hit force of the piston rod will not lose.
  • the piston rod moves away from the barrel under a differential pressure, that is, when the piston rod resets, the steel balls 7 move together with the piston rod towards the end of the inner wall of the snap ring having a larger diameter.
  • the pressing force applied by the snap ring gradually disappears, and the piston rod may reset easily without any resistance.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Portable Nailing Machines And Staplers (AREA)
EP09170181A 2009-03-27 2009-09-14 Appareil pour clouer Withdrawn EP2233250A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN200920008966U CN201389838Y (zh) 2009-03-27 2009-03-27 射钉发射装置

Publications (1)

Publication Number Publication Date
EP2233250A1 true EP2233250A1 (fr) 2010-09-29

Family

ID=41596660

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09170181A Withdrawn EP2233250A1 (fr) 2009-03-27 2009-09-14 Appareil pour clouer

Country Status (3)

Country Link
US (1) US8272550B2 (fr)
EP (1) EP2233250A1 (fr)
CN (1) CN201389838Y (fr)

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0346275A1 (fr) * 1988-06-10 1989-12-13 HILTI Aktiengesellschaft Outil d'enfoncement actionné par poudre
DE19627613C1 (de) 1996-07-09 1997-12-11 Beto Tornado Gmbh Pulverkraftbetriebenes Bolzensetzgerät
US6138887A (en) * 1998-01-27 2000-10-31 Societe De Prospection Et D'inventions Techniques Spit Fixing device with a piston propelled by compressed gas
US20020108987A1 (en) * 2001-02-09 2002-08-15 Gerhard Ehmig Holder for a drive piston of a setting tool
EP1428628A1 (fr) * 2002-12-11 2004-06-16 Societe De Prospection Et D'inventions Techniques Spit Appareil de scellement à tir indirect
US20060043139A1 (en) 2004-09-01 2006-03-02 Kolodziej Norbert K Cage and offset upper probe assembly for fastener-driving tool
US20060043143A1 (en) * 2004-09-01 2006-03-02 Kolodziej Norbert K Gas driven actuation feed tube for combustion powered fastener-driving tool
EP1798002A1 (fr) * 2004-10-08 2007-06-20 Max Co., Ltd. Cloueuse electrique
WO2008069315A1 (fr) * 2006-12-08 2008-06-12 Max Co., Ltd. Outil d'entraînement du type à combustion de gaz
US20080223898A1 (en) 2007-03-16 2008-09-18 Claire Rouger Nose assembly for a fastener driving tool
US20080251561A1 (en) 2007-04-13 2008-10-16 Chad Eades Quick connect base plate for powder actuated tool
WO2009005105A1 (fr) * 2007-07-04 2009-01-08 Max Co., Ltd. Outil de martelage de type à actionnement par gaz de combustion

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3437250A (en) * 1966-04-07 1969-04-08 Fastener Corp Fastener driving tool
US3908884A (en) * 1973-04-18 1975-09-30 Bliss & Laughlin Ind Nail and powered nailer
US4403722A (en) * 1981-01-22 1983-09-13 Signode Corporation Combustion gas powered fastener driving tool
US4483473A (en) * 1983-05-02 1984-11-20 Signode Corporation Portable gas-powered fastener driving tool
US4687126A (en) * 1985-11-21 1987-08-18 Research Plus, Inc. Power actuated tool for driving fastener
US4821938A (en) * 1987-11-25 1989-04-18 Haytayan Harry M Powder-actuated fastener driving tool
EP0424941B1 (fr) * 1989-10-27 1994-01-05 Hitachi Koki Co., Ltd. Appareil pour enfoncer des attaches actionné par une force de combustion
US6708821B2 (en) * 2002-08-21 2004-03-23 Illinois Tool Works Inc. Fastener collation strip and debris exhaust mechanism
TWM243329U (en) * 2003-03-31 2004-09-11 Besco Pneumatic Corp Improved structure of palm-held hammer
EP1484138B1 (fr) * 2003-06-02 2009-11-11 Makita Corporation Outil motorisé par combustion
CN2644112Y (zh) * 2003-07-04 2004-09-29 益卓有限公司 电动钉枪
FR2871081B1 (fr) * 2004-06-02 2006-08-11 Prospection Et D Inv S Techniq Appareil de fixation d'elements de fixation a moyens de serrage et de placage d'un magasin d'alimentation demontable et magasin d'alimentation pour l'appareil de fixation
US20070114259A1 (en) * 2005-11-23 2007-05-24 Sigma Tool & Machine Multi-blow pneumatic hand tool for inserting t-nuts
US20100072248A1 (en) * 2008-09-19 2010-03-25 Basso Industry Corp. Nailing force-adjusting device for a pneumatic nail gun

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0346275A1 (fr) * 1988-06-10 1989-12-13 HILTI Aktiengesellschaft Outil d'enfoncement actionné par poudre
DE19627613C1 (de) 1996-07-09 1997-12-11 Beto Tornado Gmbh Pulverkraftbetriebenes Bolzensetzgerät
US6138887A (en) * 1998-01-27 2000-10-31 Societe De Prospection Et D'inventions Techniques Spit Fixing device with a piston propelled by compressed gas
US20020108987A1 (en) * 2001-02-09 2002-08-15 Gerhard Ehmig Holder for a drive piston of a setting tool
EP1428628A1 (fr) * 2002-12-11 2004-06-16 Societe De Prospection Et D'inventions Techniques Spit Appareil de scellement à tir indirect
US20060043139A1 (en) 2004-09-01 2006-03-02 Kolodziej Norbert K Cage and offset upper probe assembly for fastener-driving tool
US20060043143A1 (en) * 2004-09-01 2006-03-02 Kolodziej Norbert K Gas driven actuation feed tube for combustion powered fastener-driving tool
EP1798002A1 (fr) * 2004-10-08 2007-06-20 Max Co., Ltd. Cloueuse electrique
WO2008069315A1 (fr) * 2006-12-08 2008-06-12 Max Co., Ltd. Outil d'entraînement du type à combustion de gaz
US20080223898A1 (en) 2007-03-16 2008-09-18 Claire Rouger Nose assembly for a fastener driving tool
US20080251561A1 (en) 2007-04-13 2008-10-16 Chad Eades Quick connect base plate for powder actuated tool
WO2009005105A1 (fr) * 2007-07-04 2009-01-08 Max Co., Ltd. Outil de martelage de type à actionnement par gaz de combustion

Also Published As

Publication number Publication date
US8272550B2 (en) 2012-09-25
US20100243702A1 (en) 2010-09-30
CN201389838Y (zh) 2010-01-27

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